package main

import "fmt"

func main0501() {
	a := 10
	b := 20
	sum := test4(a,b)
	fmt.Println(sum)
}
func test5(a int, b int) (sum int, sub int) {
	sum = a + b
	sub = a - b
	return
}

func main() {
	a:=10
	b:=20
	sum, sub := test5(a,b)
	fmt.Println(sum, sub)
}
